University of California’s Natural Reserve System (NRS) is a system of protected sites that broadly represent California’s rich ecological diversity. What better way to celebrate Earth Day than with a video tour of some of these pristine locations that, together, make up the largest university-operated system of natural reserves in the world.

New NRS programs will be available online on Earth Day–April 22–at our Earth Day website, where you’ll also find links to related  topics like climate change, sustainability, “green” sciences, and much more.

Enjoy your celebration of Planet Earth!